Last updated: October 15, 2017 at 2:10 am
Great Chagos Bank (Indian Ocean) – 13,000 sq km (5,019 sq miles). The atoll is mostly submerged. The total land area of the atoll, which is administered by the United Kingdom, is only 6 sq km (2.32 sq miles).
British Indian Ocean Territory (BIOT)
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Jeffrey Gallant is the Editor-in-Chief and Records Keeper of the Diving Almanac. He is also a contributing editor of DIVER Magazine, and the scientific director of the Greenland Shark and Elasmobranch Education and Research Group (GEERG). Jeffrey started diving in 1982.